.shell {
  width: min(1180px, calc(100% - 2.5rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  min-height: 5.5rem;
  padding-block: 0.4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--ink);
  min-width: 0;
}

.brand-mark {
  width: 4.85rem;
  height: 4.85rem;
  object-fit: contain;
  display: block;
  flex: 0 0 auto;
  border-radius: 0;
  background: transparent;
  image-rendering: -webkit-optimize-contrast;
  filter: contrast(1.06) saturate(1.1) drop-shadow(0 4px 12px rgba(160, 120, 40, 0.18));
}

html[data-theme="light"] .brand-mark,
html[data-theme="sand"] .brand-mark {
  /* Kill white JPEG square so logo sits clean on page */
  mix-blend-mode: multiply;
}

.site-footer .brand-mark,
html[data-theme="dark"] .brand-mark {
  mix-blend-mode: normal;
  filter: contrast(1.05) saturate(1.05);
}

.brand-text {
  display: grid;
  gap: 0.12rem;
  line-height: 1.05;
  align-content: center;
}

.brand-text .brand-top,
.brand-text strong.brand-top {
  font-size: 1.28rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--ink);
}

.brand-text .brand-sub {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.site-footer .brand-text .brand-top {
  color: #fff;
}

.site-footer .brand-text .brand-sub {
  color: rgba(255, 255, 255, 0.65);
}

.nav {
  display: flex;
  flex-wrap: nowrap;
  justify-content: center;
  gap: 0.1rem 0.85rem;
  overflow: hidden;
}

.nav a {
  position: relative;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.35rem 0;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.nav a:hover,
.nav a.is-active {
  color: var(--ink);
}

.nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.header-contacts {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 700;
  white-space: nowrap;
}

.header-mail {
  display: inline-grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 0.5rem;
  text-decoration: none;
  color: var(--accent);
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  transition: background 0.15s ease, transform 0.15s ease;
}

.header-mail:hover {
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--btn) 12%, var(--bg));
  color: var(--btn);
}

.header-phone svg {
  color: var(--accent);
  flex: 0 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.7rem;
  padding: 0.65rem 1.15rem;
  border-radius: 0.55rem;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-accent {
  background: var(--btn);
  color: var(--btn-ink);
}

.btn-accent:hover {
  background: var(--btn-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

@media (max-width: 980px) {
  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .nav {
    display: none;
  }
}

@media (max-width: 640px) {
  .header-phone span {
    display: none;
  }
}